Seafood Enchiladas

Step 1
Preheat the oven to 350 degrees F (175 degrees C).

Step 2
Make the filling: Melt butter in a large skillet over medium heat. Add onion and saut? until translucent, about 5 minutes. Remove from the heat. Stir crabmeat, shrimp, and 1/2 of the Colby cheese into the skillet.

Step 3
Arrange a large spoonful of filling across the center of each tortilla, then roll tortillas around filling. Place enchiladas, seam-side down, into a 9×13-inch baking dish.

Step 4
Make the sauce: Heat half-and-half, sour cream, melted butter, parsley, and garlic salt in a saucepan over medium-low heat, stirring often, until lukewarm and well blended. Pour over enchiladas, then sprinkle remaining cheese over top.

Step 5
Bake in the preheated oven until crab and shrimp are cooked and cheese is melted, about 30 minutes.